In libwebp 0.5.1, there is a double free bug in libwebpmux.
{
"extracted_events": [
{
"introduced": "0"
},
{
"last_affected": "0.5.1"
}
],
"source": "CPE_FIELD",
"cpe": "cpe:2.3:a:webmproject:libwebp:0.5.1:*:*:*:*:*:*:*"
}